Excellent! Glad it's working now!
Kind regards,
Adrian W.
27 Jun 2022 22:36:00 Tim :
> Adrian, reading your comment reminded me of something I read about adding a
> display option to the script. So I added the line "export DISPLAY=:0.0" and
> the script now works with the image being displayed on screen at the
> scheduled time from crontab
>
> regards
>
>
> Tim H
>
> On 26/06/2022 22:03, Adrian Warman via dorset wrote:
>> The reason is that there is no screen on which to display any windows.
>>
>> A crontab 'job' is running in its own little login. It's a command line
>> -only session, hence nowhere to send graphical display output.
>>
>> The 'no MTA' message is a different thing. The crontab task failed (nowhere
>> to display graphic output), so crontab would like to send an error report.
>> But there's no email service set up for the OS to use. MTA is Mail Transfer
>> Agent, which on Linux is typically sonething like sendmail, but also
>> (typically) is not configured and running by default.
>>
>> Adrian W.
>>
>
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